If there's a hole in each cover,you can run a PCV in each cover and T the hoses together before they go into the carb. I did that on my 355 and it works fine-runs great,doesn't leak,doesn't burn oil,and looks cool,too.
Some aftermarket intakes are set up for the filler tube;if you only have one place for a vent you might think of drilling out the hole and putting a vent/filler tube in-they're high enough they often can vent without throwing oil over the top of the engine like the vented valve cover cap is prone to do.
Speed